Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8147292 | Device for polishing hard surfaces, especially glass surfaces | Beat Steinmann | 2012-04-03 |
| 4372537 | Method and apparatus for the replacement of bottom closures of track-mounted transfer ladles | — | 1983-02-08 |
| 4269399 | Metallurgical furnace | Bernhard Tinnes, Rainer Baumann | 1981-05-26 |